{% extends "!layout.html" %}
{%- block extrahead -%}
{%- if ga_tracking_id -%}
<script async src="https://www.googletagmanager.com/gtag/js?id={{ ga_tracking_id }}"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());

  gtag('config', '{{ ga_tracking_id }}');
</script>
{%- endif -%}
{{ super() }}
{%- endblock -%}
